It sounds like the crowd became aware that the local cops were arriving right as the hotel side door was opened.
The vast majority of the crowd felt it was a trap and sounds like the local police did not have to physically remove anyone from the hotel bc the crowd had heads up they were about to get kettled.
The local cops appear to have just completed securing the entrances of the hotel and now are forming a road block to keep demonstrators away from the hotel.
Notably the local cops are armed primarily with knight sticks, pepper balls and other "non-lethals" (they still dangerous tho).
So far I've seen no local cops carrying rifles.